KR200276537Y1 - Projection table - Google Patents

Abstract

The present invention relates to a projection table.

The present invention is a table provided to put the projector for the presentation, the support body having a wheel fixing member fixed to the wheel, and a power supply to which the power is applied through the wheel is wound with a cable with a plug is supported A support part integrally provided with an interior of the body and having a first vertical member provided at a predetermined height on an exterior of the support body; A table having a support panel fixed to the inside of the frame by a hinge integrally provided with a support portion provided such that the inclination is adjusted by the adjustment mechanism, and a second vertical member provided downward in the frame so as to be fitted to the outside of the first vertical member. and; An auxiliary table fixed to one side to be hung on the frame; It is composed of the height adjustment means provided between the first and second vertical members to move to any place in the state where the projector is placed to enable efficient use of space, and also connected to an outlet supplying power to the projector The length of the plug can be adjusted to make the power supply more convenient, and the height and inclination of the raised table can be adjusted according to the location for an efficient presentation.

Description

Projection table

The present invention relates to a projection table, in particular, the LCD projector, OHP projector, slide projector and VTR on the top of the table, and the place to facilitate the movement of the place with the notebook placed in one place, and also with a plug that is adjustable in length Equipped with an outlet, it is possible to supply power to each projector conveniently, and to adjust the height and inclination of the table so that the presentations can be efficiently used for training and meetings in companies, exhibition halls, and venues. It is.

In general, when training or seminars are carried out in a large number of companies, exhibition halls and events, a projector, which is usually an optical device, is used.

These projectors are one of the projection projectors, which are used to enlarge and project photos, pictures, characters, etc. on slides and transparent paper onto the screen through the lens and show them to many people at the same time. There is a projector and an overhead projector (OHP).

Here, the slide projector slides the slide changer from side to side in accordance with the slide exchange method, and the slide is placed in a thin box with a partition called a slide box (tray) by a person to change slides by hand. There is automatic type to change mechanically by button operation or timer.

Also, OHP (overhead projector) puts transparent paper on the cover glass and draws or draws with pen or oil pencil (colored pencil) on it, and the magnified image goes over the head of the manipulator. It's supposed to be projected onto the screen behind it.

On the other hand, in addition to such an image device, there is a projection TV that incorporates a projector (engine) for projecting an image therein and projects the image on a screen mounted on the front of the projection TV in a rear projection manner to realize an image, and to obtain luminance for a large television screen. A video projector having a display device that uses a high-definition CRT as a light source and magnifies an image reflected thereon through a lens and projects it onto a screen is used.

Slide projectors, overhead projectors, projection TVs, and video projectors (hereinafter referred to as "projectors") used for education are usually placed on a table with a certain height and operated on the screen to obtain the desired image on the screen. If the scattered image is inclined or the height does not match, there was an inconvenience by adjusting the form to support the brochures and educational booklets under the protector.

In addition, when changing the position of the projector according to the number of people during the training or seminar, it is possible to move within a certain distance from the place where the outlet is installed, so that there is a problem of inefficient use of space and a cable for powering the projector. There was another problem that cluttered the aesthetics by being exposed outside the table.

And since the height of the table is always fixed, there was a problem that the height of the image reflected on the screen can not be adjusted.

The present invention has been devised to solve such a problem, and it is possible to move efficiently to any place with little power in a conference hall, exhibition hall, and event hall with a large number of projectors placed on the top of a table. In addition, by adjusting the length of the plug connected to the outlet which supplies power to the projector, it can be easily plugged into a wall or floor outlet for convenient use, and the height and inclination of the table on which the projector is placed can be used according to the location. The purpose is to provide a projection table that can be the most efficient presentation.

The present invention for achieving the above object is a table having a predetermined height to put the projector for presentation, the support body having a wheel fixing member fixed to the wheel, the wheel with a cable wound with a plug A power supply unit configured to be provided inside the support body through which a power supply is applied to the outlet, and having a first vertical member integrally provided at a predetermined height on the outside of the support body; A table having a support panel fixed to the inner side of the frame by a hinge integrally provided with a support portion provided such that the inclination of the support panel is adjusted, and a second vertical member provided downward in the frame to be fitted to the outside of the first vertical member. and; An auxiliary table fixed to one side to be hung on the frame; The object is achieved by providing a projection table, characterized in that consisting of the height adjustment means provided between the first and second vertical members.

1 is an exploded perspective view of a projection table according to the present invention.

Figure 2 is a longitudinal sectional view of the projection table according to the present invention.

3 is a cross-sectional view of portion A of FIG.

Figure 4 is a longitudinal cross-sectional view when raising the height of the projection table according to the present invention.

Figure 5 is a longitudinal cross-sectional view when adjusting the backing panel of the projection table according to the present invention.

<Brief description of symbols for the main parts of the drawings>

10 table 11 frame 12 base panel

13: hinge 14: adjusting mechanism 16: supporting part

17: second vertical member 19: auxiliary table 20: support

21: wheel 22: support body 23: wheel fixing member

24: first vertical member 30: height adjustment means 40: power supply

41: plug 42: cable 44: outlet

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

Projection table 10 according to the present invention, as shown in Figures 1 and 2, the wheel 10 so as to easily move by reducing the friction generated when moving the center of the table 10 and the load of the projector mounted on the table 10 Height adjustment means 30 provided between the table 10 and the support portion 20 to adjust the height of the support portion 20 is provided with a 21, and the table 10 provided on the upper portion of the support portion 20. It is composed of

Here, the support portion 20 has a relatively long length of the support body 22 having a rectangular cross section inside, and both ends of the support body 22 have a predetermined length and are provided to be symmetrical. A wheel fixing member 23 having a wheel 21 fixed thereto is formed at a lower end thereof, and a first vertical member 24 having a hollow inside perpendicular to an upper side of the support body 22 is integrally provided.

In addition, the inside of the support body 22 is wound around the wheel 43 so that the cable 42 having a plug 41 to be plugged into an outlet not shown installed on the wall and floor of the lecture room or meeting room to draw a predetermined length, On one side of the wheel 43 on which the cable 42 is wound, the outlet 44 having a power supply applied through the plug 41 and the cable 42 through a circular terminal (not shown) is provided on the upper portion of the support body 22. A power supply unit 40 for applying power to the furnace is provided.

One side of the first vertical member 24 is provided with a cable fastener 24a for fixing the cable 42 to prevent the cable connected to the projector from being torn and twisted.

In the wheel 43, a cable 42 having a predetermined length is usually stored in a wound state, and when the presentation is performed, the cable 42 may be drawn out to a predetermined length by pulling the plug 41. When not in use, it is provided to be rewound by the elastic force of the coil spring or spiral spring.

As shown in FIG. 1, the table 10 includes a frame 11 having a rectangular frame shape, a support panel 12 inserted into a space provided inside the frame 11, and a hinge 13. A supporting portion 16 supported by the movable screw 15 of the adjusting mechanism 14 to be described later is provided, and the table 10 can be moved up and down by the height adjusting means 30 to be described later. It is provided.

The lower part of the frame 11 is integrally provided with a second vertical member 17 to be fitted to the outside of the first vertical member 24, the long hole 17a on one side of the second vertical member 17 Or through-holes are formed to be able to move up and down without being constrained by the height adjustment means 30.

The adjusting hole 14 has a predetermined area and is inserted into the frame 11 by inserting screws into the bracket 14c having threaded holes 14a and 14b on both sides and the threaded hole 14a formed in the bracket 14c. It is fixedly installed, but the screw hole (14a) formed on one side is coupled to the fixing screw (15a) to be fixed to the lower part of the frame 11, the other side of the screw hole (14b) by combining the movable screw (15) support panel (12) is provided to push up or down the bottom.

On the other hand, the space between the lower portion of the frame 11 constituting the table 10 and the second vertical member 17 is provided with a vertical spacing member 18 and an auxiliary panel 18a for a file necessary for presentation. You can also put photos and VTRs.

One side of the frame 11 is provided with an auxiliary table 19 having an annular portion 19a that covers the top and both sides of the frame 11 in an open form to the bottom, and puts a light device such as a laptop on it. Can be.

The height adjusting means 30 is the worm shaft 32 is inserted into the inside of the first and second vertical members 24 and 17 in the state penetrated from the outside and rotatably provided by the handle 31, The worm wheel 34 is rotatably provided in the fixed panel 33 fixed to the inside of the first vertical member 24 in the state of being engaged with the axle 32, and the transfer female screw 34a is formed at the center thereof. The first and second vertical members 24 and 17 have a transfer male screw 35 coupled to the transfer female screw 34a at an inner center thereof, and an upper end of the transfer male screw 35 is fixed to the lower portion of the frame 11.

The worm shaft 32 is provided with bearings at both ends thereof so as to reduce the friction generated during rotation, so that smooth rotation is achieved.

In addition, as the worm wheel 32 is interlocked as the worm shaft 32 rotates, the worm wheel is fixed to the fixed panel 33 to prevent the worm wheel 21 from moving upward and downward along the feed screw 35 coupled to the center thereof. 21 is rotatably provided.

On the one side surface of the first vertical member 24, a long hole 17a is formed as described above, and the first vertical member 24, like the feed water screw 35, is rotated while the worm shaft 32 rotates. It is formed to move freely up and down without being constrained.

In the present invention, the height adjustment means using the worm and the worm wheel, it is possible to use the rack and pinion for converting the rotational movement of the handle to linear movement.

When using the rack and pinion, the rack is provided with a stopper or a stopper for maintaining the state of the rack according to the rotation of the pinion to move up and down to prevent the height is lowered by its own weight.

The operation of the present invention configured as described above is as follows.

First, in order to give a presentation, the projection table 10 is moved to an appropriate state, and the projector is placed on top of the support 16.

Then, the plug connected to the projector is plugged into the outlet 44 formed on the upper portion of the support body 22, and then pulls the plug 41 exposed to one side of the support body 22, the wheel 43 is rotated while the wheel ( The cable 42 wound on 43 is unwound to a predetermined length, and in this state, the plug 41 may be inserted into an outlet provided on a wall or a floor.

In this case, in order to adjust the height of the projection table 10, when the handle 31, which is the height adjusting means 30, is rotated, the worm shaft 32 connected thereto is rotated, and the worm wheel 34 is connected with the worm shaft 32. ) Is interlocked so that the feed water screw 35 screwed to the feed female screw 34a moves upward or downward to adjust the height of the table.

In order to upwardly adjust the scanning direction of the projector during the presentation, the movable screw 15 screwed to one side of the adjusting mechanism 14 is rotated clockwise and the movable screw 15 is driven by the principle of the screw. By moving upwards through the screw hole 14b, the support panel 12 is pushed up, and one side of the support panel 12 is fixed to the hinge 13, thereby changing the scanning direction of the projector upward.

On the other hand, after the presentation is finished by pulling and releasing the plug 41 is rewinded by the elastic force of the spring or spiral spring, which is an elastic means therein, it is possible to clean the process of the cable 42.

As such, the present invention provides an LCD outlet, OHP projector, slide projector and VTR, and an outlet connected to a cable with adjustable length, which makes it easier to move the space while the notebook is placed on the table so that the space can be used efficiently. There is an effect that it is possible to simply supply power to each projector.

In addition, there is an effect that an efficient presentation can be obtained by simply adjusting the height and the inclination of the table during the presentation process to provide an accurate image.

Claims (5)

A table having a predetermined height to put a projector for a presentation, Power is supplied to the outlet 44 through the support body 22 having the wheel fixing member 23 on which the wheel 21 is fixed, and the wheel 21 on which the cable 42 having the plug 41 is wound. A power supply unit 40 so as to be provided inside the support body 22 and having a first vertical member 24 integrally provided at a predetermined height on the outside of the support body 22; The support panel 12 fixed to the inner side of the frame 11 by the hinge 13, the support 16 and the outer side of the first vertical member 24 and the support 16 so that the inclination is adjusted by the adjustment mechanism (14) A table 10 integrally having a second vertical member 17 provided downward in the frame 11 so as to be fitted therein; An auxiliary table (19) fixed to one side of the frame (11) to be engaged; Projection table, characterized in that consisting of the height adjustment means (30) provided between the first and second vertical members (24, 17). The method of claim 1, The height adjustment means 30 is the worm shaft 32 is rotatably provided on the handle 31 in a state where the first and second vertical members 14 and 17 penetrate from the outside; A worm wheel 21 having a transfer female screw 34a formed at the center thereof rotatably fixed to the bracket 14c while being engaged with the worm shaft 32; A feed screw 35 screwed to the feed female screw 34a; The projection screw (35) is fixed to the lower part of the frame (11), the projection table, characterized in that the long hole (17a) is formed on one side of the second vertical member (17). The method of claim 1, The height adjustment means (30) is a projection table, characterized in that the pinion is rotatably provided on the handle, and the rack engaging the pinion is fixed to the lower portion of the frame (11). The method of claim 1, The adjusting mechanism 14 is a bracket 14c fixed to the lower side of the frame 11 by a fixing screw 15a and a movable screw 15 coupled to the female screw 14b formed on one side of the bracket 14c. Projection table, characterized in that configured. The method of claim 1, Projection table, characterized in that the cable fixture (24a) is formed on one side of the first vertical member (24).